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PubMed2006

Upper limb dynamic responses to impulsive forces for selected assembly workers.

This study evaluated the upper limb, dynamic, mechanical response parameters for 14 male assembly workers recruited from selected jobs based on power tool use. It was hypothesized that the type of power tool operation would affect stiffness, effective mass, and damping of the upper extremity; and workers with symptoms and positive physical examination findings would have different mechanical responses than asymptomatic workers without physical examination findings. Participants included operators who regularly used torque reaction power hand tools, such as nutrunners and screwdrivers, and nontorque reaction power hand tools, such as riveters. The mechanical parameters of the upper limb were characterized from the loading response of an apparatus having known dynamic properties while worker grasps an oscillating handle in free vibration. In addition, all workers underwent a physical examination, magnetic resonance imaging, and completed a symptom survey. Workers were categorized as controls or cases based on reported forearm symptoms and physical exam findings. A total of seven workers were categorized as cases and had less average mechanical stiffness (46%, p > 0.01), damping (74%, p > 0.01), and effective mass (59%, p > 0.05) than the seven workers categorized as controls. Magnetic resonance imaging (MRI) findings suggestive of muscle edema were observed for two workers classified as cases and who regularly used torque reaction power tools. No MRI enhancement was observed in the seven subjects who did not regularly use torque reaction power tools. The ergonomic consequences of less stiffness, effective mass, and damping in symptomatic workers may include reduced capacity to react against rapidly building torque reaction forces encountered when operating power hand tools.

Adult↗

PubMed2005

Territorial defense, territory size, and population regulation.

The carrying capacity of an environment is determined partly by how individuals compete over the available resources. To territorial animals, space is an important resource, leading to conflict over its use. We build a model where the carrying capacity for an organism in a given environment results from the evolution of territorial defense effort and the consequent space use. The same evolutionary process can yield two completely different modes of population regulation. Density dependence arises through expanding and shrinking territories if fecundity is low, breeding success increases gradually with territory size, and/or defense is cheap. By contrast, when fecundity is high, breeding success sharply saturates with territory size, and/or defense is costly, we predict fixed territory sizes and regulation by floaters. These "surplus" individuals form a buffer against population fluctuations. Yet floaters can also harm breeder performance, and by comparing population growth of a territorial population to a nonterritorial (and individually suboptimal) alternative, we can quantify the harmful effect of evolutionary conflict on population performance. Territoriality has often been found to increase population stability, but this may come at a cost of reduced equilibrium densities.

Animals↗

PubMed1997

Beyond quality management methods: meeting the challenges of health care reform.

Over the last 20 years, the increasing complexity and technical intensiveness of health care in French hospitals have increased the level of uncertainty in the process of care. This paper argues that beyond quality management approaches, the most important issue in health care management is the need to implement new organizational methods in response to the dynamic changes that are transforming the care process. Uncertainty, complexity and speed can all be managed by standardizing operating procedures, but when quality management is applied to a complex system such as health care, a different approach is needed. One alternative to standardization can be found in new theories of organization that emphasize the flexibility of an organization, i.e. its capacity to adapt to uncertainty. Building on empirical work, this paper integrates these different theoretical perspectives and tries to provide insight into the kind of quality management methods that will allow hospitals to deal with the new constraints being placed on the process of care.

France↗

PubMed2004

Selective DNA amplification from complex genomes using universal double-sided adapters.

There is a rapidly developing need for new technologies to amplify millions of different targets from genomic DNA for high throughput genotyping and population gene-sequencing from diverse species. Here we describe a novel approach for the specific selection and amplification of genomic DNA fragments of interest that eliminates the need for costly and time consuming synthesis and testing of potentially millions of amplicon-specific primers. This technique relies upon Type IIs restriction enzyme digestion of genomic DNA and ligation of the fragments to double-sided adapters to form closed-circular DNA molecules. The novel use of double-sided adapters, assembled through the combinatorial use of two small universal sets of oligonucleotide building blocks, provides greater selection capacity by utilizing both sides of the adapter in a sequence-specific ligation event. As demonstrated, formation of circular structures results in protection of the desired molecules from nuclease treatment and enables a level of selectivity high enough to isolate single, or multiple, pre-defined fragments from the human genome when digested at over five million sites. Priming sites incorporated into the adapter allows the utilization of a common pair of primers for the amplification of any adapter-captured DNA fragment of interest.

DNA↗

PubMed2006

Mental health referral role of rural financial counsellors.

OBJECTIVE: To quantify the proportion of rural financial counsellors' (RFC) clients requiring social, emotional and stress-related (SESR) assistance and the referral of these clients to other services. DESIGN: Survey of all Australian RFCs. SETTING: Rural and remote agricultural locations in Australia. PARTICIPANTS: Australian RFCs employed over the months of November and December 2004. MAIN OUTCOME MEASURES: The proportion of counsellors' clients who required assistance with SESR problems and the proportion of these who were referred. Counsellors' usual referral networks, rating of referral difficulty and ranking of strategies to improve referrals. RESULTS: Counsellors reported that on average 20% of their clients required SESR assistance and half of the counsellors referred more than 75% of these clients. Referrals were mainly to GPs, mental health teams, personal counselling and health and welfare organisations. Almost half (49%) reported that referrals were difficult because of rural clients' reluctance to acknowledge such problems and use mental health services, as well as the lack of these services. Counsellors were placed in a practical role dilemma when clients raised personal issues that were beyond the counsellors' role but were linked to the financial reason for presentation. Strategies identified to improve referrals were to network with mental health and personal counsellors in the region, training and a referral guide. CONCLUSIONS: Because RFCs are a first contact for rural people in crisis, they could be brought into a local counselling network. This network could improve the process of referrals and build local mental health system capacity.

Adult↗

PubMed1981

The world food situation and global grain prospects.

The basic realities of the distribution of the world's population, wealth, and agricultural production base are not conducive to an automatic stabilizing process for the world's hungry. Increasing volatility in the world grain production in the 1980's could create a problem of major proportions. By 1990, the developed world will account for 24 percent of the world's population, 85 percent of the world's economic activity, and around 50 percent of the world's grain production and consumption. On a per capita basis, the developed world will consume nearly three times as much grain as the developing countries which account for three-fourths of the world's population. Increased food aid, which is essential, is not the solution to the basic problem. The low-income countries need a massive infusion of capital investment, research support, and education if they are to build infrastructures that have the capacity to produce, distribute, and market food supplies. Other options serve only to prolong and aggravate the current disparities.

Climate↗

PubMed1993

Dimensions of rationing: who should do what?

Priority setting is a complex interaction of multiple decisions at various levels in the organisation and constrained by history. There is no self evident set of ethical principles or analytical tools to determine what decisions we should take at various levels, nor is there an obvious or easy way to resolve the clash of claims on resources. To make priority setting more "rational" we should concentrate on the processes and structure of decision making and the relation of macro and micro decisions. The debate should promote reasoned, informed, and open argument, draw on a variety of perspectives, and involve a plurality of interests. The aim must be to build up, over time, the capacity to engage in continuous, collective argument.

Budgets↗

PubMed2003

Some recollections of Porton in World War 1. Commentary.

Chemical weapons now regularly feature in news reports and the threat from them has become widely recognised by the public at large. Terrorist actions such as the Tokyo subway incident in 1995, coupled with the persistent use of agents such as sulphur mustard and Sarin by the Iraqi regime over the last 20 years in the Iran/Iraq war and against the Kurds of Northern Iraq, make it easy to think that chemical weapons are a new phenomenon. This paper reminds us that many chemical agents were developed during WWI; indeed the first use of a chemical agent was the release of chlorine gas--a choking agent--by the Germans over the battlefields of Ypres in 1915. Porton Down remains at the very heart of chemicals and biological weapons research, albeit in a purely defensive capacity; few of the old buildings remain and the idyllic lifestyle in the Officer's Mess at Idmiston Manor has long since disappeared. These recollections provide a fascinating insight into scientific research at the time of World War I.

Bioterrorism↗

PubMed1993

Winter adaptations of male deer mice (Peromyscus maniculatus) and prairie voles (Microtus ochrogaster) that vary in reproductive responsiveness to photoperiod.

Individuals of many nontropical rodent species restrict breeding to the spring and summer. Seasonal reproductive quiescence putatively reflects the energetic incompatibility of breeding and thermoregulatory activities. However, so-called "out-of-season" breeding occurs in virtually all rodent populations examined, suggesting that the incompatibility can be resolved. Both reproductive inhibition and development of energy-saving adaptations are mediated by environmental photoperiod, but some individuals do not inhibit reproduction in short days. In order to assess the costs and benefits of winter breeding, the present study examined the extent to which male prairie voles (Microtus ochrogaster) and deer mice (Peromyscus maniculatus) that maintained summer reproductive function in winter-simulated daylengths also maintained summer thermoregulatory adaptations. Circadian locomotor activity patterns, basal metabolic rate, capacity for nonshivering thermogenesis, nest building, body mass, and daily food consumption were compared among short-day (LD 8:16) regressed males, short-day (LD 8:16) nonregressed males, and long-day (LD 16:8) males. Short-day nonregressed deer mice resembled long-day conspecifics in terms of body mass and nest-building activities; however, the locomotor activity pattern of short-day nonregressed deer mice was similar to that of their short-day regressed conspecifics. Short-day nonregressed prairie voles had body masses similar to those of long-day conspecifics. Regardless of their reproductive response to photoperiod, short-day prairie voles reduced their daily food consumption and wheel-running activity, compared to long-day voles. These results suggest that winter breeding has energetic costs, most likely resulting from maintaining a "summer-like" body mass relative to that of reproductively regressed animals. These costs may be ameliorated to some extent by the reduction in locomotor activity and nest-building behavior emitted by short-day animals, regardless of reproductive response to short days. Thus, the occurrence of winter breeding may be the result of sufficient numbers of reproductively photoperiod-nonresponsive morphs in the population and sufficiently mild ambient conditions to permit survival of these larger animals.

Adaptation, Physiological↗

PubMed2004

Baltic Sea hazardous substances management: results and challenges.

The introduction into the Baltic Sea of hazardous substances that are persistent, bioaccumulate, and are toxic is an important environmental and human health problem. Multilateral efforts to address this problem have primarily been taken under the Helsinki Commission (HELCOM). This article examines past HELCOM efforts on hazardous substances, and discusses future challenges regarding their management. The article finds that past actions on hazardous substances have had a positive effect on improving Baltic environmental quality and reducing human health risks, although there are remaining issues and difficulties that need to be addressed. In particular, four related future challenges for HELCOM management of hazardous substances are identified and discussed: i) the need to engender further implementation and building public and private sector capacities; ii) the need to improve data availability, quality and comparability across the region and international fora; iii) the need to strengthen existing regulations and incorporate new issues; and iv) the need to effectively coordinate HELCOM activities with efforts on hazardous substances in other international fora.

Baltic States↗

PubMed1991

Why we need a theory of suffering, and lots of other theories as well: commentary.

In the first section of his article, "The Role of Suffering and Community in Clinical Ethics," Erich Loewy sketches a theory of suffering. His conviction is that clinical medical ethics is not clearly rooted in theory and is inadequately grounded because of this. While acknowledging the merits of virtue ethics and casuistry, Loewy quickly dispenses with them, as contenders for this theoretical basis. Kantianism and utilitarianism are likewise rejected as "a universally acceptable grounding for ethics." In their place, Loewy proposes that "a deeper and more universal grounding can be found in the capacity of sentient beings to suffer." It is on this capacity to suffer that he builds his hierarchies of moral value, including primary, secondary, and symbolic worth. This theory of suffering should be welcomed. It promises to expand our awareness of clinical experience, and moral life generally, away from autonomy, utility, or virtue orientations toward attention to suffering and our response to it. Such a theory can give us a revitalized language to probe the issues of medical ethics. This should lead us to a careful reading of Loewy's larger work on which this article is based. Yet my enthusiasm is tempered by Loewy's noncritical acceptance of a peculiar, yet pervasive, understanding of the role and use of theory in ethics....

Animal Rights↗

PubMed2003

Detection of gaps in the spatial coverage of coral reef monitoring projects in the US Caribbean and Gulf of Mexico.

As part of the US Coral Reef Task Force's National Program to Map, Assess, Inventory, and Monitor US Coral Reef Ecosystems, a comprehensive survey of projects/programs monitoring coral reef ecosystems and related habitats (i.e., seagrass beds and mangroves) in the US Caribbean and Pacific was undertaken. Information was gathered on a total of 296 monitoring and assessment projects conducted since 1990 in the US Caribbean and the Gulf of Mexico. Substantial gaps in monitoring coverage of US coral reef ecosystems were revealed through geographic information system (GIS) analysis of survey metadata. Although southern Florida contains approximately two-thirds of all marine monitoring projects found in the US Caribbean and Gulf of Mexico, we were unable to identify any ongoing projects that monitor coral reefs along Florida's western coast and off of the Florida Middle Grounds. Additionally, Florida is covered by approximately 1 900 km2 of mangroves, yet there were only four ongoing projects that monitor this ecosystem, leaving gaps in coverage in the Lower and Middle Keys and along the eastern and western coasts. The Flower Garden Banks National Marine Sanctuary, located offshore of the Texas/Louisiana border, has an integral long-term monitoring program, but lacks a monitoring project that gathers long-term, quantitative data on reef lish abundance and certain water quality parameters. Numerous coral reef monitoring projects in Puerto Rico are concentrated on the island's southwestern coast surrounding La Parguera, while far fewer monitoring projects are conducted along the northern and southeastern coasts and around Vieques Island. In the US Virgin Islands, the paucity of monitoring projects in large areas of St. Croix and St. Thomas contrasts with monitoring activity in three marine protected areas (MPAs), where 66% of the US Virgin Islands' coral reef monitoring sites were found. Only a series of assessments have been conducted at Navassa, a small, uninhabited island located 55 km west of Haiti and 137 km northeast of Jamaica. In order to better understand changes in coral reef communities and to produce a series of biennial reports on the status of US coral reef ecosystems, the National Oceanic and Atmospheric Administration (NOAA) is developing a national coral reef monitoring network. This network has already begun to fill some of these gaps in monitoring coverage through issuing cooperative grants to states and territories to build long-term monitoring capacity.

Animals↗

PubMed2006

Rethinking political correctness.

Legal and cultural changes over the past 40 years ushered unprecedented numbers of women and people of color into companies' professional ranks. Laws now protect these traditionally underrepresented groups from blatant forms of discrimination in hiring and promotion. Meanwhile, political correctness has reset the standards for civility and respect in people's day-to-day interactions. Despite this obvious progress, the authors' research has shown that political correctness is a double-edged sword. While it has helped many employees feel unlimited by their race, gender, or religion,the PC rule book can hinder people's ability to develop effective relationships across race, gender, and religious lines. Companies need to equip workers with skills--not rules--for building these relationships. The authors offer the following five principles for healthy resolution of the tensions that commonly arise over difference: Pause to short-circuit the emotion and reflect; connect with others, affirming the importance of relationships; question yourself to identify blind spots and discover what makes you defensive; get genuine support that helps you gain a broader perspective; and shift your mind-set from one that says, "You need to change," to one that asks, "What can I change?" When people treat their cultural differences--and related conflicts and tensions--as opportunities to gain a more accurate view of themselves, one another, and the situation, trust builds and relationships become stronger. Leaders should put aside the PC rule book and instead model and encourage risk taking in the service of building the organization's relational capacity. The benefits will reverberate through every dimension of the company's work.

Commerce↗

PubMed1989

New needs in health management.

National health development policies demand the building of operational and management capacities. A WHO study has identified key requirements in these areas and has found that few countries are in a position to meet them.

Delivery of Health Care↗

PubMedDate not supplied

[Hospitals and some outstanding physicians of Pancevo].

This paper is a retrospection of hospitals and some outstanding physicians who lived in Pancevo, written in the honor of 50th anniversary of "Medical Review". Hospital bed capacity and the process of building hospitals have been: described briefly. Fire and wars have destroyed a lot of written evidence important for Pancevo health services. Nevertheless, the preserved sources let us read about facts that have already or will soon become part of the history of medicine. Apart from this, the paper also contains important details from the life and work of Konstantin Peicić (1802-1882), a famous physician, writer of the first Serbian original medical book "De pauperum aegrorum" (About Treating the Sick and Poor) and many other medical and fine literature works. He had worked in Pancevo for more than 30 years, but after he had retired, he moved to Budapest to become the manager of the Tekelianum in 1874. He spoke Latin, Hungarian, French, Italian, German and of course Serbian language. The paper also gives data on some other physicians: Ljubomir Nenadović a dentist and a writer, Jovan Jovanović-Zmaj, a physician and a great Serbian poet and a founder of the journal "Ziza" and assistant of the journal "Pancevac" founded in 1869, and so on. The above mentioned physicians had lived and worked in Pancevo since the first medical institution "Kontumac" was built in 1726, but then others were built too: the first civil hospital in 1803 and the first army hospital in 1830. Modern departments were built in 1965, whereas the Children's Department for Internal Diseases and the Department for Internal Diseases were built in 1974. This retrospection tried to present the history of Pancevo as well as great people from our past who worked there to our readers. They were great physicians, educators and gifted writers.

History, 18th Century↗

PubMed2000

Emergence and preservation of a chronically sick building.

STUDY OBJECTIVE: To investigate the merits of case studies as complementary methodological approaches in the study of the sick building syndrome. SETTING AND PARTICIPANTS: A Swedish office building with longstanding health problems, and its inhabitants. DESIGN: This paper is a case study based both on historical and present, quantitative as well as qualitative, documentary material, produced over the years by distinct parties, and on semi-structured interviews. RESULTS: Long drawn conflictive processes within the building were identified. It was revealed that the organisation for dealing with environmental problems was split, and ineffective with poor patterns of communication. It was suggested that this generated a situation of chronic stress leading to the persistence of symptoms. CONCLUSIONS: By their capacity to identify internal processes within building contexts, case study methodology can contribute to a better understanding and management of sick building syndrome. The results of this study suggest that psychosocial factors, among them organisational structures and communication patterns, should be given close attention.

Adult↗

PubMed2006

Health Research Profile to assess the capacity of low and middle income countries for equity-oriented research.

BACKGROUND: The Commission on Health Research for Development concluded that "for the most vulnerable people, the benefits of research offer a potential for change that has gone largely untapped." This project was designed to assess low and middle income country capacity and commitment for equity-oriented research. METHODS: A multi-disciplinary team with coordinators from each of four regions (Asia, Latin America, Africa and Central and Eastern Europe) developed a questionnaire through consensus meetings using a mini-Delphi technique. Indicators were selected based on their quality, validity, comprehensiveness, feasibility and relevance to equity. Indicators represented five categories that form the Health Research Profile (HRP): 1) Research priorities; 2) Resources (amount spent on research); 3) Production of knowledge (capacity); 4) Packaging of knowledge and 5) Evidence of research impact on policy and equity. We surveyed three countries from each region. RESULTS: Most countries reported explicit national health research priorities. Of these, half included specific research priorities to address inequities in health. Data on financing were lacking for most countries due to inadequate centralized collection of this information. The five main components of HRP showed a gradient where countries scoring lower on the Human Development Index (HDI) had a lower capacity to conduct research to meet local health research needs. Packaging such as peer-reviewed journals and policy forums were reported by two thirds of the countries. Seven out of 12 countries demonstrated impact of health research on policies and reported engagement of stakeholders in this process. CONCLUSION: Only one out of 12 countries indicated there was research on all fronts of the equity debate. Knowledge sharing and management is needed to strengthen within-country capacity for research and implementation to reduce inequities in health. We recommend that all countries (and external agencies) should invest more in building a certain minimum level of national capacity for equity-oriented research.

Africa↗

PubMedDate not supplied

Detoxification of herbicides in Phragmites australis.

Unintentional loss of herbicides into drainage ditches, shores or other waterbodies may cause large problems in farmland. Therefore strategies for the phytoremediation of agrochemicals and especially herbicides have become a topic of great interest in many agricultural areas. However, in order to establish effective biological pollution control, information on the detoxification capacity of riparian plants and aquatic macrophytes (e.g., Phragmites australis) is important to build up effective buffer stripes. We determined the detoxification capacity of Phragmites australis roots and leaves for the conjugation of agrochemicals to glutathione by assaying the model substrate CDNB as well as the herbicides fenoxaprop-P, propachlor, pethoxamid and terbuthylazine. Specific GST activities were always higher in the rhizomes (6.78 +/- 0.88 microkat/mg protein for CDNB) than in leaves (1.08 +/- 0.21 microkat/mg protein). The detoxification capacity is distributed across an array of GST isoforms. In summary, Phragmites australis seems to be efficient in herbicide detoxification and a good candidate for phytoremediation of effluents from agricultural sites.

Biodegradation, Environmental↗